itom 1.4.0
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00001 /* ******************************************************************** 00002 itom software 00003 URL: http://www.uni-stuttgart.de/ito 00004 Copyright (C) 2013, Institut für Technische Optik (ITO), 00005 Universität Stuttgart, Germany 00006 00007 This file is part of itom and its software development toolkit (SDK). 00008 00009 itom is free software; you can redistribute it and/or modify it 00010 under the terms of the GNU Library General Public Licence as published by 00011 the Free Software Foundation; either version 2 of the Licence, or (at 00012 your option) any later version. 00013 00014 In addition, as a special exception, the Institut für Technische 00015 Optik (ITO) gives you certain additional rights. 00016 These rights are described in the ITO LGPL Exception version 1.0, 00017 which can be found in the file LGPL_EXCEPTION.txt in this package. 00018 00019 itom is distributed in the hope that it will be useful, but 00020 WITHOUT ANY WARRANTY; without even the implied warranty of 00021 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library 00022 General Public Licence for more details. 00023 00024 You should have received a copy of the GNU Library General Public License 00025 along with itom. If not, see <http://www.gnu.org/licenses/>. 00026 *********************************************************************** */ 00027 00028 #ifndef ADDINGRABBER_H 00029 #define ADDINGRABBER_H 00030 00031 #include "addInInterface.h" 00032 00033 #include "../DataObject/dataobj.h" 00034 #include "sharedStructuresQt.h" 00035 #include "sharedStructures.h" 00036 00037 #if !defined(Q_MOC_RUN) || defined(ITOMCOMMONQT_MOC) //only moc this file in itomCommonQtLib but not in other libraries or executables linking against this itomCommonQtLib 00038 00039 namespace ito 00040 { 00041 class ITOMCOMMONQT_EXPORT AddInGrabber : public ito::AddInDataIO 00042 { 00043 Q_OBJECT 00044 00045 private: 00046 00048 00054 int m_started; 00055 00056 protected: 00057 void timerEvent (QTimerEvent *event); 00059 00060 00069 virtual ito::RetVal checkData(ito::DataObject *externalDataObject = NULL); 00070 00072 00079 virtual ito::RetVal retrieveData(ito::DataObject *externalDataObject = NULL) = 0; 00080 00081 ito::RetVal sendDataToListeners(int waitMS); 00083 inline int grabberStartedCount() { return m_started; } 00086 inline void incGrabberStarted() 00087 { 00088 m_started++; 00089 if(m_started == 1) 00090 { 00091 runStatusChanged(true); //now, the device is started -> check if any listener is connected and if so start the auto grabbing timer (if flag is true, too) 00092 } 00093 } 00094 00096 inline void decGrabberStarted() 00097 { 00098 m_started--; 00099 if(m_started == 0) 00100 { 00101 runStatusChanged(false); //now, the device is stopped -> stop any possibly started auto grabbing listener 00102 } 00103 } 00104 00106 inline void setGrabberStarted(int value) 00107 { 00108 m_started = value; 00109 runStatusChanged( value > 0 ); 00110 } 00111 00112 ito::DataObject m_data; 00114 public: 00115 AddInGrabber(); 00116 ~AddInGrabber(); 00117 00118 }; 00119 } //end namespace ito 00120 00121 #endif //#if !defined(Q_MOC_RUN) || defined(ITOMCOMMONQT_MOC) 00122 00123 #endif